[Darren Addy]

Thanks for the reply!

I was using the Safe Area in the Video Media Generator, but did not take it into account on stills that I made in Photoshop. For any others searching this forum with the same issue, this is most easily solved by using the appropriate Preset in Photoshop when creating a New document. In my case using “NTSC DV 720×480 (with guides)” is perfect.